CN110518994A - A kind of UAV TT & C's method and apparatus - Google Patents
A kind of UAV TT & C's method and apparatus Download PDFInfo
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- CN110518994A CN110518994A CN201910858499.2A CN201910858499A CN110518994A CN 110518994 A CN110518994 A CN 110518994A CN 201910858499 A CN201910858499 A CN 201910858499A CN 110518994 A CN110518994 A CN 110518994A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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Abstract
The invention discloses a kind of UAV TT & C's method and apparatus.This method comprises: acquisition unmanned plane position and Reference Signal Received Power, the threshold interval of Reference Signal Received Power is selected according to unmanned plane position, judge whether Reference Signal Received Power breaks through the threshold interval, the transmission of Unmanned Aerial Vehicle Data is adjusted if breaking through the threshold interval.This method makes unmanned plane improve the stability of business data transmission in the case where ensureing flight safety.
Description
Technical field
The present invention relates to UAV TT & C's technical fields, and in particular to a kind of UAV TT & C's method and apparatus.
Background technique
China's industry unmanned plane industry high speed development, in the energy, meteorology, agricultural, ocean, exploration, security protection, rescue, logistics
Etc. professional domains have application.The flight observing and controlling mode of unmanned plane is also evolving, point-to-point observing and controlling side in traditional unmanned plane
Formula can no longer meet the demand for development of unmanned plane industry.Therefore, net connection formula unmanned plane is carried out using mobile communications network winged
Row observing and controlling is gradually developing into the main trend of unmanned plane during flying observing and controlling.
Carrying out flight observing and controlling to net connection formula unmanned plane using mobile communications network is during unmanned plane during flying to machine
Real-time reference signal reception power (RSRP, Reference the Signal Receiving of mounted terminal CPE transmission data
Power) numerical value is monitored, and presets threshold value, if RSRP numerical value breaks through threshold value when unmanned plane carries out data transmission,
The then preferential transmission for ensureing control class instruction, and optionally cut off the transmission of service class video data.
But during practical flight observing and controlling, the intensity of center of housing estate signal is better than the intensity of cell edge signal, is
Flight safety is ensured to greatest extent, often pays the utmost attention to the signal strength of center of housing estate, threshold value can be arranged when threshold value is set
It is higher.Therefore, if net connection formula unmanned plane is located at cell edge in flight observing and controlling, even if network signal transmission at this time is preferably,
RSRP numerical value may also can be lower than threshold value, lead to the transmission of unmanned plane cutting service class data, cause unmanned plane in safe enough
In the case where also can not be stable offer service class data transmission.
Summary of the invention
For this purpose, the present invention provides a kind of UAV TT & C's method and apparatus, with solve in the prior art due to net connection formula without
Unmanned plane also can not be steady in the case where safe enough caused by the man-machine RSRP numerical value in cell edge is easy to break through threshold value
The problem of transmission of service class data is provided surely.
To achieve the goals above, first aspect present invention provides a kind of UAV TT & C's method, this method comprises:
Acquire unmanned plane position and Reference Signal Received Power；
The threshold interval of Reference Signal Received Power is selected according to unmanned plane position；
Judge whether Reference Signal Received Power breaks through threshold interval, adjusts Unmanned Aerial Vehicle Data if breaking through threshold interval
Transmission.
Wherein, the threshold interval step of Reference Signal Received Power is selected according to unmanned plane position, comprising:
Obtain Physical Cell Identifier and the center of housing estate position of cell corresponding with unmanned plane position；
Calculate the distance between unmanned plane position and center of housing estate position；
According to the threshold interval of above-mentioned distance selection Reference Signal Received Power.
Wherein, above-mentioned threshold interval includes first threshold section and second threshold section；It is above-mentioned to be referred to according to distance selection
The threshold interval step of signal reception power, comprising:
Judge the size relation of above-mentioned distance with the radius in center of housing estate region；If above-mentioned distance is less than center of housing estate area
The radius in domain then selects first threshold section；If above-mentioned distance is greater than or equal to the radius in center of housing estate region, the is selected
Two threshold intervals；Wherein center of housing estate region is default according to above-mentioned Physical Cell Identifier.
Preferably, above-mentioned Unmanned Aerial Vehicle Data includes business datum and control instruction data, if above-mentioned breakthrough threshold interval
Then adjust the transmitting step of Unmanned Aerial Vehicle Data, comprising:
Stop the transmission of above-mentioned business datum, to keep the transmission of control instruction data.
Preferably, before above-mentioned acquisition unmanned plane position and Reference Signal Received Power step, further includes:
Network insertion application is sent to base station；
The network insertion returned according to base station and base station, which are established, to be connected to the network.
Second aspect of the present invention provides a kind of UAV TT & C's device, which includes:
Acquisition module, for acquiring unmanned plane position and Reference Signal Received Power；
Selecting module, for selecting the threshold interval of Reference Signal Received Power according to above-mentioned unmanned plane position；
First judgment module, for judging whether above-mentioned Reference Signal Received Power breaks through above-mentioned threshold interval；
Data conditioning module, for being adjusted when first judgment module judges that Reference Signal Received Power breaks through threshold interval
The transmission of Unmanned Aerial Vehicle Data.
Preferably, the device further include:
First obtains module, for obtaining Physical Cell Identifier and the center of housing estate position of cell corresponding with unmanned plane position
It sets；
Computing module, for calculating the distance between unmanned plane position and center of housing estate position；
Above-mentioned selecting module, for the threshold interval according to distance selection Reference Signal Received Power.
Preferably, threshold interval includes first threshold section and second threshold section；Above-mentioned apparatus further include:
Second judgment module, for judging the size relation of above-mentioned distance with the radius in center of housing estate region；If above-mentioned
Distance is less than the radius in center of housing estate region, then selects first threshold section；If above-mentioned distance is greater than or equal to center of housing estate
The radius in region then selects second threshold section.
Preferably, above-mentioned Unmanned Aerial Vehicle Data includes business datum and control instruction data；
Above-mentioned data conditioning module is also used to stop the transmission of above-mentioned business datum, to keep the biography of control instruction data
It is defeated.
Preferably, above-mentioned apparatus further include:
Sending module, for sending network insertion application to base station；
Network access module, network insertion and the base station for being returned according to base station, which are established, to be connected to the network.
The present invention has the advantage that
UAV TT & C's method provided by the invention selects Reference Signal Received Power by the unmanned plane position of acquisition
Threshold interval, i.e. unmanned plane correspond to the threshold interval of the Reference Signal Received Power of differentiation when being located at cell different zones, make
Unmanned plane will not because of region apart from base station farther out and be easy break through Reference Signal Received Power threshold interval.Judgement is adopted
Whether the Reference Signal Received Power of collection breaks through the threshold interval of the Reference Signal Received Power, connects if breaking through the reference signal
The threshold interval for receiving power then adjusts the transmission of Unmanned Aerial Vehicle Data, improves unmanned plane in the case where ensureing flight safety
The stability of business data transmission.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.
Fig. 1 is a kind of flow chart of UAV TT & C's method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of UAV TT & C's device provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present embodiment provides a kind of UAV TT & C's methods, as shown in Figure 1, method includes the following steps:
Step S101 acquires unmanned plane position and Reference Signal Received Power.
Wherein, coordinate representation of the unmanned plane position comprising longitude and latitude, the coordinate can be carried by unmanned aerial vehicle onboard terminal
Locating module generate in real time.It should be noted that Reference Signal Received Power (Reference Signal in the present embodiment
Receiving Power, RSRP) it is the ginseng for characterizing signal strength when carrying out wireless communication between unmanned aerial vehicle onboard terminal and base station
Number.In the case where network normally accesses, when unmanned plane is located near base station, carried out between unmanned aerial vehicle onboard terminal and base station
Signal strength when wireless communication is stronger, and RSRP is larger；When unmanned plane is located at the position at base station covering edge, unmanned aerial vehicle onboard
Signal strength when carrying out wireless communication between terminal and base station is weaker, and RSRP is smaller.
In one embodiment, before acquiring unmanned plane position and Reference Signal Received Power, unmanned aerial vehicle onboard terminal
It establishes and is connected to the network with base station, specifically include: sending network insertion application to base station, the network insertion returned according to base station and base
Foundation of standing is connected to the network.Wherein, network insertion application is to provide network insertion to base station requests after unmanned aerial vehicle onboard terminal is switched on
When to base station issue application, base station provide network include second generation communication network (Second generation mobile
Networks, abbreviation 2G), third generation communication network (Third generation mobile networks, abbreviation 3G), the 4th
For communication network (4th generation mobile networks, abbreviation 4G) and/or the 5th generation communication network (5th
Generation mobile networks, abbreviation 5G).The network insertion application includes unmanned plane identification information, such as nobody
Machine registration number.After network connection is established, unmanned aerial vehicle onboard terminal can monitor and acquire unmanned plane position in real time and with reference to letter
Number receive power.
Step S102 selects the threshold interval of Reference Signal Received Power according to unmanned plane position.
In the case where network normally accesses, unmanned plane position is different, and Reference Signal Received Power is also accordingly varied,
Such as unmanned plane is remoter from the base station for providing network insertion for it, ginseng when unmanned aerial vehicle onboard terminal and base station carry out wireless communication
Examining signal reception power can also decay therewith.Therefore, the threshold zone of the reception power of reference signal is selected according to unmanned plane position
Between when, need first to obtain the distance between unmanned plane position and base station, according to this distance select Reference Signal Received Power threshold
It is worth section.
It is specific: to obtain Physical Cell Identifier (the Physical Cell of cell corresponding with unmanned plane position first
Identifier, PCI) and center of housing estate position.
Wherein, Physical Cell Identifier and center of housing estate position are that network connection is established backward in unmanned aerial vehicle onboard terminal and base station
The information that base station inquiry obtains.In one embodiment, unmanned aerial vehicle onboard terminal sends inquiry request to base station, which asks
It include unmanned plane position in asking；The information of the corresponding cell in unmanned plane position is inquired according to the inquiry request and returned in base station,
It include Physical Cell Identifier and center of housing estate position, the coordinate representation of the center of housing estate position comprising longitude and latitude in information.
It should be noted that center of housing estate position is base station position in the present embodiment, the region where cell is
For the region of base station signal covering.Can by the region division where the cell be center of housing estate region and cell edge region,
Wherein, center of housing estate region and cell edge region are default according to Physical Cell Identifier.Different Physical Cell Identifier are corresponding small
The radius in area has differences, and therefore, carries out center of housing estate region and cell edge area to respective cell according to Physical Cell Identifier
The division methods in domain are also different.The method that the present embodiment divides center of housing estate region and cell edge region does not do special limit
It is fixed.In one embodiment, it is specified that center of housing estate region is region of the edge apart from cell area greater than 2 kilometers；Cell
Fringe region is the region that the edge away from cell area is less than or equal to 2 kilometers.For example, the letter of the corresponding cell of Physical Cell Identifier
It is 15 kilometers of region that the region of number covering, which is radius, then wherein region of the radius less than 13 kilometers is center of housing estate region, half
Diameter is that 13 kilometers~15 kilometers of region is cell edge region.
Secondly, calculating the distance between unmanned plane position and center of housing estate position, reference signal is selected to connect according to this distance
Receive the threshold interval of power.Wherein, the threshold interval of Reference Signal Received Power includes first threshold section and second threshold area
Between.In addition, also to judge the distance and center of housing estate area after calculating the distance between unmanned plane position and center of housing estate position
The size relation of the radius in domain selects first threshold section if the distance is less than the radius in center of housing estate region；If should
Distance is greater than or equal to the radius in center of housing estate region, then selects second threshold section.
Step S103, judges whether Reference Signal Received Power breaks through threshold interval, adjusts if breaking through threshold interval
The transmission of Unmanned Aerial Vehicle Data.
Wherein, Unmanned Aerial Vehicle Data includes business datum and control instruction data.Business datum is that unmanned plane progress business is living
The data generated when the activities such as the data generated when dynamic, such as progress temperature and humidity induction, photo acquisition and/or video capture.Control
Director data processed is the data that behaviour control is carried out to unmanned plane that unmanned plane terminal is interacted with unmanned plane remote control apparatus, example
Such as advance, rotation are landed and/or control instruction data of making a return voyage.If reference signal breaks through threshold interval, then it represents that current net
There are problems for network transmission.In order to ensure the flight safety of unmanned plane, need to adjust the transmission of Unmanned Aerial Vehicle Data, specifically, stopping
The transmission of business datum, to keep the transmission of control instruction data.
In one embodiment, the region of base station signal covering is the region that radius is 15 kilometers, i.e. cell is corresponding
Region is the region that radius is 15 kilometers, it is specified that wherein region of the radius less than 13 kilometers is center of housing estate region, radius 13
Kilometer~15 kilometers region be cell edge region；Be arranged Reference Signal Received Power first threshold section be greater than-
85dBm, it is less than or equal to -80dBm；Second threshold section is more than or equal to -90dBm, is less than -85dBm.Unmanned plane and base station are established
After network connection, unmanned plane position and Reference Signal Received Power are acquired, and obtain the object of cell corresponding with unmanned plane position
Manage cell ID and center of housing estate position；The distance between unmanned plane position and center of housing estate position are calculated, if this is apart from small
In 13 kilometers, then select Reference Signal Received Power to be greater than -85dBm, be less than or equal to -80dBm to be threshold interval；If the distance
More than or equal to 13 kilometers, then select Reference Signal Received Power to be more than or equal to -90dBm, be less than -85dBm to be threshold interval；Sentence
The threshold interval of the whether prominent selection of the Reference Signal Received Power of disconnected acquisition, stops business if the threshold interval for breaking through selection
The transmission of data, to keep the transmission of control instruction data.
The present invention provides a kind of UAV TT & C's method, selects Reference Signal Received Power by the unmanned plane position of acquisition
Threshold interval, i.e., the threshold interval of the Reference Signal Received Power of differentiation is corresponded to when unmanned plane is located at cell different zones,
Make unmanned plane will not because of region apart from base station farther out and be easy break through Reference Signal Received Power threshold interval.Judgement
Whether the Reference Signal Received Power of acquisition breaks through the threshold interval of the Reference Signal Received Power, if breaking through the reference signal
The threshold interval for receiving power then adjusts the transmission of Unmanned Aerial Vehicle Data, improves unmanned plane in the case where ensureing flight safety
The stability of business data transmission.
The present embodiment also provides a kind of UAV TT & C's device, as shown in Fig. 2, the device includes:
Sending module 201, for sending network insertion application and inquiry request to base station.
Network access module 202, network insertion and base station for being returned according to base station, which are established, to be connected to the network.
Locating module 203 generates unmanned plane position, the unmanned plane position is by wrapping for being positioned in real time to unmanned plane
Coordinate representation containing longitude and latitude.
RSRP monitoring modular 204 is used for real-time monitoring Reference Signal Received Power.
Acquisition module 205, for acquired respectively from locating module 203 and RSRP monitoring modular 204 unmanned plane position and
Reference Signal Received Power.
First obtains module 206, in the Physical Cell Identifier and cell for obtaining cell corresponding with unmanned plane position
Heart position.Specifically, sending module 201 sends inquiry request so that base station is inquired according to the inquiry request and returns to this to base station
The information of the corresponding cell in unmanned plane position includes Physical Cell Identifier and center of housing estate position in information.
Computing module 207, for calculating the distance between unmanned plane position and center of housing estate position.The unmanned plane position and
Center of housing estate position is all with the coordinate representation comprising longitude and latitude.
Memory module 208, for storing the radius according to the preset center of housing estate region of different Physical Cell Identifier.
Second judgment module 209, for judging the calculated distance of computing module 207 and the radius in center of housing estate region
Size relation.Wherein, center of housing estate region obtains the Physical Cell Identifier that module 206 obtains according to first and presets, preset small
The radius in district center region is stored by memory module 208.
Selecting module 210, for selecting the threshold interval of Reference Signal Received Power according to unmanned plane position, specifically,
For selecting the threshold interval of Reference Signal Received Power according to the distance between unmanned plane position and center of housing estate position.If
Second judgment module 209 judges that the distance between unmanned plane position and center of housing estate position are less than the radius in center of housing estate region,
Then selecting module 210 selects first threshold section；If the second judgment module 209 judges unmanned plane position and center of housing estate position
The distance between be greater than or equal to center of housing estate region radius, then selecting module 210 select second threshold section.
Whether first judgment module 211, the Reference Signal Received Power for judging that acquisition module 205 acquires break through threshold value
Section.
Data conditioning module 212, for judging that Reference Signal Received Power breaks through threshold interval when first judgment module 211
When adjust the transmission of Unmanned Aerial Vehicle Data, specifically, for stopping the transmission of business datum, to keep the biography of control instruction data
It is defeated.
It is respectively walked in the working method of each module and UAV TT & C's method in UAV TT & C's device provided in this embodiment
Rapid corresponding, therefore, the detailed operation mode of each module can be found in unmanned plane provided in this embodiment and survey in UAV TT & C's device
Prosecutor method.
The present invention provides a kind of UAV TT & C's device, selects RSRP by the unmanned plane position that acquisition module 205 acquires
Threshold interval, i.e., selecting module 210 can choose the threshold zone of the RSRP of differentiation when unmanned plane is located at cell different zones
Between, make unmanned plane will not because of region apart from base station farther out and be easy break through the RSRP threshold interval.First judges mould
Block 211 judges whether the Reference Signal Received Power of acquisition breaks through the threshold interval of the RSRP, if breaking through the threshold value of the RSRP
Section then data conditioning module 212 adjust Unmanned Aerial Vehicle Data transmission, mention unmanned plane in the case where ensureing flight safety
The high stability of business data transmission.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of UAV TT & C's method, which is characterized in that the described method includes:
Acquire unmanned plane position and Reference Signal Received Power；
The threshold interval of Reference Signal Received Power is selected according to the unmanned plane position；
Judge whether the Reference Signal Received Power breaks through the threshold interval, adjusts nothing if breaking through the threshold interval
The transmission of man-machine data.
2. the method according to claim 1, wherein described select reference signal to connect according to the unmanned plane position
Receive the threshold interval step of power, comprising:
Obtain Physical Cell Identifier and the center of housing estate position of cell corresponding with the unmanned plane position；
Calculate the distance between the unmanned plane position and the center of housing estate position；
According to the threshold interval of the distance selection Reference Signal Received Power.
3. according to the method described in claim 2, it is characterized in that, the threshold interval includes first threshold section and the second threshold
It is worth section；The threshold interval step according to the distance selection Reference Signal Received Power, comprising:
Judge the size relation of the distance with the radius in center of housing estate region；If the distance is less than the center of housing estate area
The radius in domain then selects first threshold section；If the distance is greater than or equal to the radius in the center of housing estate region, select
Select second threshold section；The center of housing estate region is default according to the Physical Cell Identifier.
4. the method according to claim 1, wherein the Unmanned Aerial Vehicle Data includes business datum and control instruction
Data, the transmitting step that Unmanned Aerial Vehicle Data is adjusted if breaking through the threshold interval, comprising:
Stop the transmission of the business datum, to keep the transmission of control instruction data.
5. the method according to claim 1, wherein the acquisition unmanned plane position and Reference Signal Received Power
Before step, further includes:
Network insertion application is sent to base station；
The network insertion returned according to the base station and the base station, which are established, to be connected to the network.
6. a kind of UAV TT & C's device, which is characterized in that described device includes:
Acquisition module, for acquiring unmanned plane position and Reference Signal Received Power；
Selecting module, for selecting the threshold interval of Reference Signal Received Power according to the unmanned plane position；
First judgment module, for judging whether the Reference Signal Received Power breaks through the threshold interval；
Data conditioning module, for judging that the Reference Signal Received Power breaks through the threshold zone when the first judgment module
Between when adjust Unmanned Aerial Vehicle Data transmission.
7. device according to claim 6, which is characterized in that described device further include:
First obtains module, for obtaining Physical Cell Identifier and the center of housing estate position of cell corresponding with the unmanned plane position
It sets；
Computing module, for calculating the distance between the unmanned plane position and the center of housing estate position；
The selecting module, for the threshold interval according to the distance selection Reference Signal Received Power.
8. device according to claim 7, which is characterized in that the threshold interval includes first threshold section and the second threshold
It is worth section；Described device further include:
Second judgment module, for judging the size relation of the distance with the radius in center of housing estate region；If the distance
Less than the radius in the center of housing estate region, then first threshold section is selected；If the distance is greater than or equal to the cell
The radius of central area then selects second threshold section.
9. device according to claim 6, which is characterized in that the Unmanned Aerial Vehicle Data includes business datum and control instruction
Data,
The data conditioning module is also used to stop the transmission of the business datum, to keep the transmission of control instruction data.
10. device according to claim 6, which is characterized in that described device further include:
Sending module, for sending network insertion application to base station；
Network access module, network insertion and the base station for being returned according to the base station, which are established, to be connected to the network.
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| CN114401257A (en) * | 2022-01-07 | 2022-04-26 | 中国联合网络通信集团有限公司 | Data transmission method, airborne terminal, electronic device, and computer-readable medium |
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